5秒后页面跳转
捷配首页

Datasheet > LT3905
LT3905 PDF预览

LT3905

更新时间： 2024-09-28 14:58:03
品牌 Logo 应用领域
亚德诺 - ADI 监视器光电二极管转换器
页数 文件大小 规格书
18页 252K
描述
具 APD 电流监视器的升压型 DC/DC 转换器

阅读下载

中文翻译

获取价格

LT3905 数据手册

 浏览型号LT3905的Datasheet PDF文件第2页浏览型号LT3905的Datasheet PDF文件第3页浏览型号LT3905的Datasheet PDF文件第4页浏览型号LT3905的Datasheet PDF文件第5页浏览型号LT3905的Datasheet PDF文件第6页浏览型号LT3905的Datasheet PDF文件第7页 
LT3905  
Boost DC/DC Converter  
with APD Current Monitor  
FeaTures  
DescripTion  
The LT®3905 is a fixed frequency current-mode step-up  
converter designed to bias avalanche photodiodes (APD)  
in optical receivers. The LT3905 features high side APD  
current monitoring over four decades of dynamic range  
with better than 2% relative accuracy over the 3µA to  
3mA range.  
n
65V, 350mA Internal DMOS Switch  
n
Integrated Schottky Diode  
n
2% Accurate APD Current Monitoring Over the 3µA  
to 3mA Range  
n
Single Resistor Programs Maximum APD Current  
n
Fast APD Current Limiter with Indicator  
n
Programmable Loss-of-Signal Indicator  
The maximum APD current is programmed with a single  
resistor, and a fast current limiter with indicator protects  
the APD during overload conditions. Adjustable output  
voltage provides dynamic bias control, and an adjustable  
loss-of-signal indicator flags low APD current.  
n
CTRL Pin Adjusts Output Voltage  
n
Programmable V Undervoltage Lockout  
IN  
n
n
n
n
n
n
High Efficiency Step-Up Converter  
Selectable 1MHz/2MHz Switching Frequency  
Internally Compensated  
Coupled with the integrated DMOS power switch and  
Schottky rectifier, the LT3905 provides a compact total  
solution with few external components and low solution  
cost. Constant switching frequency results in predictable  
output noise that is easy to filter.  
Internal Soft-Start  
2.7V to 12V V Range  
Low Shutdown Current: <1µA  
IN  
applicaTions  
The LT3905 is available in the tiny footprint (3mm × 3mm)  
16-Lead QFN Package.  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
n
APD Bias  
n
PIN Diode Bias  
n
Optical Receivers and Modules  
Fiber Optic Network Equipment  
n
Typical applicaTion  
Adjustable APD Bias Supply  
10µH  
Input Current vs APD Current  
V
IN  
2.7V to 12V  
125  
1µF  
UP TO 54V  
634k  
V
= 45V  
APD  
V
IN  
SW  
EN/UVLO  
LOS_ADJ  
V
OUT  
FB  
100  
75  
50  
25  
0
f
SEL  
15k  
V
ADJUST  
CTRL  
OUT  
V
IN  
= 3.3V  
LT3905  
1:20  
MONIN  
GND  
V
IN  
220nF  
100k  
100k  
V
= 5V  
IN  
LOS  
ILIM  
1:10  
LOS_MON  
APD  
APD  
1:5  
MON  
ILIM_MON  
RX POWER  
1M  
9.09k  
2.75mA  
LIMIT  
0
0.625  
1.25  
1.875  
(mA)  
2.5  
4.99k  
1mV/µA  
12.5µA LOS  
I
APD  
3905 TA01b  
3905 TA01a  
3905fa  
1
For more information www.linear.com/LT3905  
1234567...18

中文翻译

下载PDF

与LT3905相关器件

型号 品牌 获取价格 描述 数据表
LT3909 ADI

获取价格

 		具 ±2% 电流匹配准确度的两串 x 60mA、2MHz 升压型 LED 驱动器
LT390AW LGE

获取价格

 		Ceramic Filter
LT390Z SEOUL

获取价格

 		GREEN OVAL LAMP LED
LT391 SEOUL

获取价格

 		INFRARED LAMP LED
LT3922 ADI

获取价格

 		36V、2A 同步升压型 LED 驱动器
LT3922-1 ADI

获取价格

 		具有 25,000:1 PWM 调光功能的 36V、2.3A 同步升压型 LED 驱动器
LT3922EUFD Linear Systems

获取价格

 		36V, 2A Synchronous Step-Up LED Driver
LT3922EUFD#PBF Linear

获取价格

 		LT3922 - 36V, 2A Synchronous Step-Up LED Driver; Package: QFN; Pins: 28; Temperature Range
LT3922EUFD#TRPBF Linear

获取价格

 		LT3922 - 36V, 2A Synchronous Step-Up LED Driver; Package: QFN; Pins: 28; Temperature Range
LT3922EUFDTRPBF Linear Systems

获取价格

 		36V, 2A Synchronous Step-Up LED Driver

与LT3905相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证